1. Section 3.2 Solving Equations Using Multiplication & Division Mr. Beltz & Mr. Sparks

2. Goal:  Solve linear equations using multiplication and division.  Remember, Multiplication and Division are Inverse Properties.

3. Same steps: ***Change Subtraction to Addition, take the Opposite of the next number.*** 1 st Draw a line underneath the equal sign. 2 nd Circle the variable (remember the sign to the left stays with the variable) 3 rd Do the Inverse Operation

4. 3x = 9 ---------- --------- 3 3 X = 3 ***Change Subtraction to Addition, take the Opposite of the next number.*** 1 st Draw a line underneath the equal sign. 2 nd Circle the variable (remember the sign to the left stays with the variable) 3 rd Do the Inverse Operation MULTIPLICATION

5. Independent Practice 60 = 5x -3x = -9 -4x = 1

6. Solutions 60 = 5x X = 12 -3x = -9X = 3 -4x = 1 X = -1 4

7. X = 10 2 2*X 10 * 2 2 X = 20 ***Change Subtraction to Addition, take the Opposite of the next number.*** 1 st Draw a line underneath the equal sign. 2 nd Circle the variable (remember the sign to the left stays with the variable) 3 rd Do the Inverse Operation DIVISION

8. Independent Practice X = 11 3 X = -2 4 7 = X 7

9. Solutions: X = 11X = 33 3 X = -2X = -8 4 7 = XX = 49 7

10. Practice Pg. 141 #6 -14